Renewable Energy Resources

Chapter 5- Section 2

Solar Energy

Advantages:


  • can warm rooms that are exposed by sun
  • you can't run out and continually produces energy
  • clean and no pollution

Disadvantages:



  • works less when cloudy and not at all at night
  • can use batteries, but difficult to store a lot
  • if batteries are worn out they can pollute environment

Wind Energy

Advantages:


  • used to grind grain and pump water
  • nonpolluting and free
  • little harm to environment
  • can be used as electricity with strong winds

Disadvantages:



  • have to have wind in order to work
  • wind has to be at an appropriate speed, if not won't have energy

Hydroelectric Energy

Advantages:


  • produced by running water
  • turbines turn to make electricity

Disadvantages:



  • has little additional cost
  • sediment and downstream erosion occurs more often

Geothermal Energy

Advantages:


  • you can find hot dry rocks about anywhere
  • steam makes turbines go and make electricity

Disadvantages:


  • hot lava can possibly erode in the process
  • dangerous to find

Biomass Energy

Advantages:

  • easy to find and produce - also gives you heat in the process
  • gives all the garbage we produce a purpose

Disadvantages:

  • gases and small particles are released when burned-- pollution
  • burning wastes can cause toxic ash residue